Effect Of Uv Light On Plant Growth Experiment

Read about the positive and negative effects of ultraviolet radiation on plants.

Effect of uv light on plant growth experiment.

Likewise exposure for a long time to this type of light will damage the plants that you are growing a study conducted demonstrated that plants raised without exposure to uv light exhibited enhanced growth. Develop a hypothesis to predict how increased ultraviolet radiation might affect lettuce plant growth. Through experimentation scientists have concluded that red light and blue light have the greatest effects on plant growth. Concomitantly the amounts of solar uv b radiation reaching the earth s surface is increasing.

Light is made up of particles of energy known as photons. These sunscreens vary from one species to another but include trichome terpene and color development. Ultraviolet 20nm to 380 nm being exposed to uv light for a long period of time has harmful effects on humans. Purchase six lettuce plant seedlings from a plant nursery or other source.

Alternately grow the plants from seed. Plants which use sunlight for photosynthesis and are unable to avoid exposure to enhanced levels of uv b radiation are at risk. This process creates a sugar called glucose and also produces oxygen. The uv b spectrum also offers a bit of natural protection against fungal infection and unwanted pests.

White light 3 plants have light receptors that detect visible light and generate a response. Based on the bswf obtained in the study the integrated uv light effect on the bryophyte fluorescence increased only 5 under the same scenario of 16 reduction of stratospheric ozone while it increased 20 on growth of higher plants 43 on commission internationale de l éclairage cie erythemal dose and 95 on dna damage. Ultraviolet light is used to kill bacteria and other microscopic life forms. The light energy from the sun then triggers a chemical reaction that breaks down the carbon dioxide and water molecules.

The glucose is then broken down by organelles called chloroplast and provide the energy needed to grow and repair plants. Ultraviolet light of the b variety encourages plants to produce their own natural sunscreen. Its deadly effect is not limited to microscopic organisms though. Uv b radiation has been shown to be harmful to living organisms damaging dna proteins lipids and membranes.

There were no other differences between the two groups of plants except the height. In the end the uv light plants had grown taller than the sunlight plants. Blue light photoreceptors absorb wavelengths of blue light and trigger a number of reactions in plants. Uv light can alter the composition of materials and conditions needed for photosynthesis the process plants used to grow.